NCP-CoV(2019-nCoV) Spike Protein (RBD, His tag)





来源:Eukaryotic expression

表达宿主:HEK293 Cells

纯度:> 95 % as determined by SDS-PAGE.

内毒素:<1.0 EU per μg protein as determined by the LAL method.

蛋白构建:A DNA sequence encoding the 2019-nCoV Spike Protein (RBD) was expressed with a polyhistidine tag at the C-terminus.

生物活性:Measured by its binding ability in a functional ELISA.

Immobilized human ACE2 protein (His tag) at 2μg/mL (100μL/well) can bind 2019-nCoV Spike Protein (RBD, His Tag),the EC50 of 2019-nCoV Spike Protein (RBD,His Tag) is 15-50ng/mL.

分子量:The recombinant 2019-nCoV Spike Protein (RBD, HisTag) consists of 457 amino acids and predicts a molecular mass of 30 kDa.


缓冲液:Sterile PBS, pH 7.4.(Please contact us for any concerns or special requirements.)

运输方式:Recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.

稳定性&储存条件:Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃

Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.


●NCP-CoV(2019-nCoV) Spike Protein (RBD, His tag): SDS-PAGE图片



●NCP-CoV(2019-nCoV) Spike Protein (RBD, His tag): 别称

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●CoV spike 背景信息

The spike (S) glycoprotein of coronaviruses contains protrusions that will only bind to certain receptors on the host cell. Known receptors bind S1 are ACE2, angiotensin-converting enzyme 2; DPP4, dipeptidyl peptidase-4; APN, aminopeptidase N; CEACAM, carcinoembryonic antigen-related cell adhesion molecule 1; Sia, sialic acid; O-ac Sia, O-acetylated sialic acid. The spike is essential for both host specificity and viral infectivity. The term 'peplomer' is typically used to refer to a grouping of heterologous proteins on the virus surface that function together. The spike (S) glycoprotein of coronaviruses is known to be essential in the binding of the virus to the host cell at the advent of the infection process. It's been reported that 2019-nCoV can infect the human respiratory epithelial cells through interaction with the human ACE2 receptor. The spike protein is a large type I transmembrane protein containing two subunits, S1 and S2. S1 mainly contains a receptor binding domain (RBD), which is responsible for recognizing the cell surface receptor. S2 contains basic elements needed for the membrane fusion.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity. The main functions for the Spike protein are summarized as: Mediate receptor binding and membrane fusion; Defines the range of the hosts and specificity of the virus; Main component to bind with the neutralizing antibody; Key target for vaccine design; Can be transmitted between different hosts through gene recombination or mutation of the receptor binding domain (RBD), leading to a higher mortality rate.